substile

from The Collaborative International Dictionary of English v.0.48
Substile \Sub"stile`\, n. (Dialing)
   See {Substyle}.
   [1913 Webster]
from The Collaborative International Dictionary of English v.0.48
Substyle \Sub"style`\, n. (Dialing)
   A right line on which the style, or gnomon, of a dial is
   erected; being the common section of the face of the dial and
   a plane perpendicular to it passing through the style.
   [Written also {substile}.] --Hutton.
   [1913 Webster]
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